package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.common.R;
import com.itheima.dto.DishDto;
import com.itheima.entity.Category;
import com.itheima.entity.Dish;
import com.itheima.entity.DishFlavor;
import com.itheima.service.CategoryService;
import com.itheima.service.DishFlavorService;
import com.itheima.service.DishService;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/dish")
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;

    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto) {
        dishService.saveWithFlavor(dishDto);
        return R.success("保存成功");
    }

    @GetMapping("/page")
    public R<IPage<DishDto>> page(int page, int pageSize, String name) {
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper
                .like(StringUtils.isNotEmpty(name), Dish::getName, name)
                        .orderByDesc(Dish::getUpdateTime);
        dishService.page(pageInfo, queryWrapper);
        BeanUtils.copyProperties(pageInfo, dishDtoPage,"records");
        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map(item -> {
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item, dishDto);
            Long categoryId = item.getCategoryId();
            Category category = categoryService.getById(categoryId);
            String categoryName = category.getName();
            dishDto.setCategoryName(categoryName);
            return dishDto;
        }).collect(Collectors.toList());
        dishDtoPage.setRecords(list);
        return R.success(dishDtoPage);
    }

    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable Long id) {
        DishDto byIdWithFlavor = dishService.getByIdWithFlavor(id);
        return R.success(byIdWithFlavor);
    }

    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto) {
        dishService.updateWithFlavor(dishDto);
        return R.success("更新成功");
    }

    @GetMapping("/list")
    public R<List<Dish>> list(Dish dish) {
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper
                .eq(Dish::getCategoryId, dish.getCategoryId())
                .eq(Dish::getStatus, 1)
                .orderByAsc(Dish::getSort)
                .orderByDesc(Dish::getUpdateTime);
        List<Dish> list = dishService.list(queryWrapper);
        return R.success(list);
    }
}
